儒家: 《論語》 (公元前480年 – 公元前350年)

“The Analects of Confucius“ (480-350 BC) English translations by James Legge, or Leonard A. Lyall.

《論語》《述而》7.25 :

子以四教：文，行，忠，信。

There were four things which the Master taught: letters, ethics, devotion of soul, and truthfulness.

【Alternative translation】The Master taught four things: art, conduct, faithfulness and truth.

【現代漢語翻譯】孔子教學有四項內容：文獻、品行、忠誠、信實。

【试译】孔子用四点教人：读经，实践，忠诚，守信。